What was found
(CAN) THIS IS BRIEF DESCRIPTION OF EVENTS LEADING UP TO INCID. OF PANEL 691AT, LOCATED ON RT UPPER WING, EXITING A/C MSN 183 AT TAKEOFF ON 8 DEC 2001.ON 11 NOV 01, PANEL REMOVED TO PERFORM INSP OF LOW SPEED AILERON HINGEBOLTS FOR CORROSION. INSPECTION COMPLETED & PANEL REINSTALLED SAME DAY.